C11111333133313232233133313331333133313332313331211113313121133133313332322121   >>    C1111133313331323223313331333133313331333231333121111331312113313331333232212   <<    C11111333133313232233133313331333133313332313331211113313121133133313332322123   >>      C11111333133313232233133313331333133313332313331211113313121133133313332322122   >>